Tenants May Gain Clout
In Office-Rental Market

Office landlords had a heyday in 2006 as rents rose at the fastest pace in six years. Yet there are signs that conditions could be turning a little more in the favor of tenants.

Newly released data by Reis Inc., a New York real-estate research firm, show that office rents rose 9% nationally last year, the heftiest increase since the height of the technology boom in 2000. However, the report also found that demand for new office space...